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Sticky pickle - MOT related

Well, I really am in a jam. 

My car is due its MOT by the weekend. Had it booked in today to get it done with the main dealership.  I took it there rather than the usual MOT place I go as the engine management warning light has been on forever (last 2 years) and really wanted to get it sorted out once & for all - so booked in a Diagnostic check as well.  I first got the car diagnostically checked when the light first appeared by a mobile set up. Bloke charged c£100 and said that it was something to do with the exhaust emissions & couldn't sort it - but manged to switch the warning light off. Problem solved...........NO. It came on again and as he said it was nothing and car was drivable with the light on I carried on. 

MOT last year. I told my normal place about the warning light & they said its a fail. I said is there anything they could do to pass it & they did. No questions asked but chap did say to get it fixed. Silly me didn't

onto today. Dealership just rang to say it would fail due to the EM light being on (yes, I know that - thats why I took it there to get it fixed FIRST before having the MOT !! ) - Diagnostic check is £219 so not cheap to tell me what I already know. 

The Diagnostic check says its a nox sensor - £1400 (inc VAT) to get it fixed. GULP. But here's the rub.............

They can't get a new sensor for 3-4 MONTHS. They are on order & its an issue countrywide. Can't do the MOT as it will fail without it. 

So, what do I do. I can't be without a car for MONTHS. I cant be without a car for a week. They will let me pick the car up as they haven't yet done the MOT but then what ?

Drive without an MOT & get it done when the part is finally in ?

Take it to my usual garage ? - but I don't want to have THAT conversation again. Not fair on the bloke & I'm sure he'll tell me to do one.

The most stupidest thing about it all is that the car is fine. Roadworthy & the EM warning light doesn't affect the car at all. Its not like I'm driving around with bald tyres or an exhaust hanging off. 

Then I read ANPR cameras pick up cars without an MOT and its a £1000 fine - so its not like I can just hope I don't get pulled over before part is available. 

WWYD.
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Comments

  • Take the bulb out of the warning light
  • Don't risk it. Buy something cheap and cheerful to get you past the next three months.

    I sent a car to a broker/dealer to be sold a few years ago and bought a MG ZR Atomix and run around in that. Okay it was tacky and slow but I really enjoyed it for a change and kind of wished I'd kept it now.
  • cafcfan said:
    Don't risk it. Buy something cheap and cheerful to get you past the next three months.

    I sent a car to a broker/dealer to be sold a few years ago and bought a MG ZR Atomix and run around in that. Okay it was tacky and slow but I really enjoyed it for a change and kind of wished I'd kept it now.
    Just told my daughter - she said sell it & buy a newer one (its a 2014 plate but only done 34k miles). But any dealer is going to see the warning light, do their own test & want to take thousands off the price (We buy any car was quoting £12600 last week).

    But biggest kicker is I'm in the middle of buying a property. Need every penny I have & can't have new finance as that will scupper the mortgage.
  • Surely they can pass it with an advisory knowing its on order? Worth asking the question. Even if you pay for it all upfront to guarantee it.  
  • How long does the light stay off when reset?. Long enough to get through the mot?. Think insurance will be a problem if no mot.
  • red10 said:
    How long does the light stay off when reset?. Long enough to get through the mot?. Think insurance will be a problem if no mot.
    Usually a month or 2 before it comes on again, so easily will get through an MOT once it has been switched off. But I have no clue how to do that so looking for a friendly MOT centre (like last year) who would do that. Mercedes said that they couldn't do that for love nor money. Too mush of a risk. 
  • robroy said:
    Surely they can pass it with an advisory knowing its on order? Worth asking the question. Even if you pay for it all upfront to guarantee it.  
    Apparently not. 
  • Try to get the part directly yourself. Someone somewhere will have one.  Saved pounds and time doing that myself.

    If it has dodgy emissions it is best off the road until fixed 
  • I had similar with a focus many years ago, I got a kit off eBay, which you could pull into the car and reset the light through a laptop. Did it for several years before getting rid of the car.
  • edited June 2023
    Take it to the other place and get them to switch it off as part of the MOT. Had a similar issue on mine. They charged me an extra £50  and it came back on when  I stalled it later, but it passed. I think they will be used to this, it's a known fault on certain makes (esp Peugeot apparently)

    The other option is see if you  can get something that can talk to the operating system and switch it off yourself. 
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  • I know a garage in Orpington that will pass it.
    Pm me if you are interested 
  • edited June 2023
    I work around MOTs all day long
    1, DO NOT DRIVE WITHOUT A VALID ANNUAL TEST.
    (Invalidates your insurance, and if you do have an RTC and the Police become involved and someone is KSI, you can face pretty serious charges)
    2, Yes ANPR is triggered you can be stopped by a Traffic Officer. DVSA DO NOT STOP PRIVATE MOTORIST. However they do run special ops alongside Traff Pols and can issue prohibitions)
    3, DO NOT GET A FRAUDULENT TEST CERT, 
    You would be in the realms of serious trouble if they can prove the MOT cert was issued fraudulently.
    The Tester the Garage, will not be able to produce a Emissions print out, They can also ask for ANPR "pings" which may show the car being in another location while the test is taking place.
    AND THE POLICE/DVSA PROSECUTE ON BENT MOTS
    My advice is get the part number of the NOX sensor and see if you can locate the part on the Internet,(make sure its genuine) get your local man in a van to install.  While your waiting for the part get the car tested, and make sure their no other nasty surprises  then you will know that once the sensor is installed and MIL lamp extinguished. He-Ho valid MOT and away you go.
    (The only time you can drive a car without a valid test being in force is when it is en-route to an MOT nation with a pre-booked appointment)

  • My Honda has got a non Honda cat, so the light is on all the time.
    Go to a MOT place, tell them the score and bung them a drink.
    Simple
  • During the 70’s my dad got a ticket off the OB and had to produce his documents at the police station within 7 days. When he got the paperwork out to take it, he noticed the MOT was out by a few weeks. Anyway he managed to get one “backdated” and when off to the station, where the OB thanked him for the paperwork and waved him on his way.

    Now, what he should have done was go and get a real MOT, he didn’t bother. A few months later and the road tax was up. So he sent my mum off to the car tax office in Sidcup to renew the car tax. During that couple of months the list of “stolen” MOT numbers had been circulated. Which resulted in the lady asking my mum and little sister to wait for a few minutes. After which, two OB from the station just up the road arrived to ask my mum to accompany them to the police station to help them with their enquiries. She knew nothing and they let her go, but asked for the dad to attend the station at his earliest convenience. 

    He attended and explained that he had some work done on the car by someone he met in a pub and the same bloke got him the MOT. He never heard anything ever again, about the event. We would offer mention it to wind him up every now and again.
  • I only read the original post so this may have been answered.

    take it to your usual place and get the mot passed like you did last year and then book it into the main dealer (or shop around) and take it back in 3-4 months. If you're not booking it in for an mot now, they won't remember in a quarter of a year that they told you it would fail.
  • edited June 2023
    Many thanks for all your help & comments.

    I've been waiting for the Merc dealership to call me back as I wanted to speak to the service manager rather than a telephone operator who was just relying messages.

    Obviously it's gone 5.30 & they've all gone home so will have to deal with it in the morning. Hoping the service manager can come up with a suitable work around if not I'll be picking the car up & bringing it home. Then I'll likely be taking up one of the  suggestions on here.

    Also been on the Merc owners Facebook page. Loads & loads of this problem over the past 2 years. Options people have suggested is getting it "mapped out" (???) or having the Ad Blue deleted. Or as suggested on here sourcing the part off Ebay & fitting it myself. That last one is above my pay grade though. 

    One thought I did have which I know won't fly. I pay extra on my insurance for a courtesy car. Now, if the car needs a "part" and without that "part" the car is not legally allowed on the road I wonder if I could claim on the insurance for a courtesy car. As I said, I know it would be knocked back but.....
  • This isn’t guaranteed (and you’d have to scour around under your dash to check that your port is the same) but it’s likely the cheapest dice roll you’d have
     https://www.ebay.co.uk/itm/164025638112?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=UfWGqs5QSAa&sssrc=4429486&ssuid=ZSqHT42dRJO&var=&widget_ver=artemis&media=COPY
    If you buy a similar puppy to this then you should be able to see and clear the error code (and therefore light) yourself. 
    Assuming all is well elsewhere you then get your mot and wait for the real part to come in a few months time. 
    I had to do this on a VW Eos many moons ago….
  • See if the part is available from a breaker
  • Take the bulb out of the warning light
    That is exactly what I did when I had a similar issue.
  • edited June 2023
    Just seen Merc nox sensors are maybe a couple hundred if sourced directly. Take one to a garage and ask them to fit. 
    I got shock absorbers from a German supplier and local garage to fit. Also clutch parts. Admittedly nox sensor needs to be specific to make and model and maybe some risk of getting wrong one but big savings likely.

    https://www.google.com/search?q=mercedes+nox+sensor&oq=merc+nox+wenor&aqs=chrome.1.69i57j0i13i512l14.5319j0j7&client=ms-android-samsung&sourceid=chrome-mobile&ie=UTF-8

    All garages rely on their usual suppliers and won't have the internet skills to search out a specific item for a customer. Self service is the way to go.
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  • Ok… buy one off EBay, just watched a video of a guy replacing one on a 2017 Merc. It’s an absolute doddlevif you have a ramp, I would estimate 30 minutes at most. 
  • RaplhMilne said:

    . It’s an absolute doddle if you have a ramp,
    Ah, I see a slight flaw in your plan.
  • Well, I really am in a jam. 

    My car is due its MOT by the weekend. Had it booked in today to get it done with the main dealership.  I took it there rather than the usual MOT place I go as the engine management warning light has been on forever (last 2 years) and really wanted to get it sorted out once & for all - so booked in a Diagnostic check as well.  I first got the car diagnostically checked when the light first appeared by a mobile set up. Bloke charged c£100 and said that it was something to do with the exhaust emissions & couldn't sort it - but manged to switch the warning light off. Problem solved...........NO. It came on again and as he said it was nothing and car was drivable with the light on I carried on. 

    MOT last year. I told my normal place about the warning light & they said its a fail. I said is there anything they could do to pass it & they did. No questions asked but chap did say to get it fixed. Silly me didn't

    onto today. Dealership just rang to say it would fail due to the EM light being on (yes, I know that - thats why I took it there to get it fixed FIRST before having the MOT !! ) - Diagnostic check is £219 so not cheap to tell me what I already know. 

    The Diagnostic check says its a nox sensor - £1400 (inc VAT) to get it fixed. GULP. But here's the rub.............

    They can't get a new sensor for 3-4 MONTHS. They are on order & its an issue countrywide. Can't do the MOT as it will fail without it. 

    So, what do I do. I can't be without a car for MONTHS. I cant be without a car for a week. They will let me pick the car up as they haven't yet done the MOT but then what ?

    Drive without an MOT & get it done when the part is finally in ?

    Take it to my usual garage ? - but I don't want to have THAT conversation again. Not fair on the bloke & I'm sure he'll tell me to do one.

    The most stupidest thing about it all is that the car is fine. Roadworthy & the EM warning light doesn't affect the car at all. Its not like I'm driving around with bald tyres or an exhaust hanging off. 

    Then I read ANPR cameras pick up cars without an MOT and its a £1000 fine - so its not like I can just hope I don't get pulled over before part is available. 

    WWYD.
    Will the Dealer supply a courtesy car or 'reasonable' hire car for the duration?
  • RaplhMilne said:

    . It’s an absolute doddle if you have a ramp,
    Ah, I see a slight flaw in your plan.

    £45 at Halfords

    Halfords 2 Tonne Car Ramps  Halfords UK

  • bobmunro said:
    RaplhMilne said:

    . It’s an absolute doddle if you have a ramp,
    Ah, I see a slight flaw in your plan.

    £45 at Halfords

    Halfords 2 Tonne Car Ramps  Halfords UK

    You know where you can stick those Bob !
  • Are you covered third party fire and theft. If yes nothing a gallon of petrol won't sort out lol 
  • bobmunro said:
    RaplhMilne said:

    . It’s an absolute doddle if you have a ramp,
    Ah, I see a slight flaw in your plan.

    £45 at Halfords

    Halfords 2 Tonne Car Ramps  Halfords UK

    You know where you can stick those Bob !
    Under the front wheels.
  • edited June 2023
    I'm not sure why you can't claim a courtesy car if it is on your insurance as technically your car has broken down which the garage can testify to. Alternatively, you could by a cheap car like a kia Picanto or Fiat Panda and sell it when your car is ready. These are not cars that will have been thrashed. You probably won't lose much if anything at all.
  • cafcfan said:
    Don't risk it. Buy something cheap and cheerful to get you past the next three months.

    I sent a car to a broker/dealer to be sold a few years ago and bought a MG ZR Atomix and run around in that. Okay it was tacky and slow but I really enjoyed it for a change and kind of wished I'd kept it now.
    Just told my daughter - she said sell it & buy a newer one (its a 2014 plate but only done 34k miles). But any dealer is going to see the warning light, do their own test & want to take thousands off the price (We buy any car was quoting £12600 last week).

    But biggest kicker is I'm in the middle of buying a property. Need every penny I have & can't have new finance as that will scupper the mortgage.
    You need to speak to a financial advisor. ;)
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